EP2907595A1 - Verfahren zur Herstellung einer Hülse, versehen mit einem Durchgangsloch in der Radialrichtung, sowie Hülse und Rohrverbindung mit der Hülse - Google Patents

Verfahren zur Herstellung einer Hülse, versehen mit einem Durchgangsloch in der Radialrichtung, sowie Hülse und Rohrverbindung mit der Hülse Download PDF

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Publication number
EP2907595A1
EP2907595A1 EP14159673.4A EP14159673A EP2907595A1 EP 2907595 A1 EP2907595 A1 EP 2907595A1 EP 14159673 A EP14159673 A EP 14159673A EP 2907595 A1 EP2907595 A1 EP 2907595A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
hole
holes
internal thread
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14159673.4A
Other languages
English (en)
French (fr)
Inventor
Wolfgang Barbett
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huwa International Pipeline Products BV
Original Assignee
Huwa International Pipeline Products BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huwa International Pipeline Products BV filed Critical Huwa International Pipeline Products BV
Publication of EP2907595A1 publication Critical patent/EP2907595A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/02—Hose-clips
    • F16L33/04—Hose-clips tightened by tangentially-arranged threaded pin and nut
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/063—Friction heat forging
    • B21J5/066—Flow drilling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/02—Nuts or like thread-engaging members made of thin sheet material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • F16B37/045—Devices for fastening nuts to surfaces, e.g. sheets, plates specially adapted for fastening in channels, e.g. sliding bolts, channel nuts
    • F16B37/047—Barrel nuts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00—Joints with sleeve or socket
    • F16L21/002—Sleeves or nipples for pipes of the same diameter; Reduction pieces
    • F16L21/005—Sleeves or nipples for pipes of the same diameter; Reduction pieces made of elastic material, e.g. partly or completely surrounded by clamping devices

Definitions

  • the invention relates to a method of manufacturing a sleeve provided with at least a single through hole which extends in radial direction and has a bounding wall provided with internal thread.
  • Sleeves of this type are used among other things with pipe clamps to join either or not in a liquid-tight manner two pipe segments lying in line.
  • a method of this type is known from EP 1 568 930 A1 .
  • This document discloses a method of providing a threaded hole in a sleeve by first introducing a hole running transversely through the sleeve, subsequently pressing the bounding edges of the holes inwards until they come into contact with each other, and cutting the thread in the hole.
  • a disadvantage of this known method is that when the edges of the holes are pushed inwards the holes tend to become unround. In consequence, it is necessary to bore the holes first before they can be threaded.
  • the method according to the invention is characterized in that two wall portions of the sleeve situated diametrically opposed to each other are pressed towards each other until they have contact with each other, subsequently a through hole is provided in the two wall portions, after which the hole is machined by means of a flow drill method where the bounding wall of the hole is stretched or flows so that the axial length of the hole increases, and finally internal thread is cut in the hole.
  • the hole need not first be finished before the thread is cut in the hole.
  • the invention also relates to a sleeve provided with at least a single through hole which extends in radial direction and has an internally threaded bounding wall.
  • the invention is characterized in that two sleeve wall portions situated diametrically opposed to each other are pressed together and are provided with the internally threaded through hole whose bounding wall has flown in axial direction.
  • the invention further relates to a pipe coupling for joining two smooth pipes situated in line and in axial direction present at a short distance from each other, the coupling comprising a clamping cylinder divided over its length as well as tightening means by which the clamping cylinder can be clamped around the two pipes to be joined, which tightening means comprise two cylindrical sleeves each having two through holes bored in radial direction, which sleeves are connected to the edges extending in axial direction along the parting line of the clamping cylinder, where the holes in a first one of the sleeves is free from thread and two clamp bolts project through these holes and with the bolt head abut the sleeve, and the holes in the other, second sleeve are provided with internal thread in which the clamp bolts can be turned.
  • the pipe coupling is characterized in that two diametrically opposed wall portions of the second sleeve are pressed together and are provided with the two internally threaded through holes whose bounding walls are flown in axial direction.
  • Fig. 1 shows an embodiment of a pipe coupling according to the invention.
  • the pipe coupling 1 comprises a longitudinally divided clamping cylinder 3 whose edges 5 are flanged inwards at the ends, as well as tightening means by which the clamping cylinder can be clamped around pipes to be joined.
  • the tightening means are formed by two sleeves 7 and 9 which can be drawn towards each other by means of two clamp bolts 11.
  • Each sleeve 7, 9 has two through holes 15, 17.
  • the holes 15 are unthreaded and the clamp bolts 11 project through these holes, while the bolt heads 11b abut the sleeve 7.
  • the holes 17 are internally threaded holes in which threaded holes the clamp bolts 11 are turned.
  • the pipe coupling 1 further includes two conical rings 19 which are interrupted at a certain spot, which rings are each present with an outer edge positioned at an angle between the cylinder sleeve 3b and one of the flanged edges 5.
  • the pipe coupling further includes a sealing muff 21 which is located between the two rings 19 and whose outside is in contact with the inside of the clamping cylinder 3.
  • the sleeve 9 having threaded holes 17 is produced by locally flattening a piece of tubing, by pressing two round dies 23 and 25 towards each other on either side of the piece of tubing until diametrically opposed wall portions 9a and 9b of the tubing contact each other.
  • a through hole 17 is provided in the flattened portion and this hole is machined by means of a flow drill mandrel 27 while the wall 17b of the hole 17 flows and is stretched so to say, so that the axial length of the hole increases. Finally, internal thread 29 is cut in the wall.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
EP14159673.4A 2013-03-12 2014-03-13 Verfahren zur Herstellung einer Hülse, versehen mit einem Durchgangsloch in der Radialrichtung, sowie Hülse und Rohrverbindung mit der Hülse Withdrawn EP2907595A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2010431A NL2010431C2 (nl) 2013-03-12 2013-03-12 Werkwijze voor het vervaardigen van een huls voorzien van een zich in radiale richting uitstrekkend doorgaand gat, alsmede huls en pijpkoppeling voorzien van de huls.

Publications (1)

Publication Number Publication Date
EP2907595A1 true EP2907595A1 (de) 2015-08-19

Family

ID=51300505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14159673.4A Withdrawn EP2907595A1 (de) 2013-03-12 2014-03-13 Verfahren zur Herstellung einer Hülse, versehen mit einem Durchgangsloch in der Radialrichtung, sowie Hülse und Rohrverbindung mit der Hülse

Country Status (2)

Country Link
EP (1) EP2907595A1 (de)
NL (1) NL2010431C2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019532229A (ja) * 2016-08-22 2019-11-07 ノルマ ジャーマニー ゲーエムベーハー 鉤爪式固定手段
US11788363B2 (en) 2020-04-02 2023-10-17 Noetic Technologies Inc. Tool joint clamp

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110842551A (zh) * 2019-11-27 2020-02-28 广州环亚化妆品科技有限公司 一种锁定机构以及锁定方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040208688A1 (en) * 2003-04-02 2004-10-21 Rasmussen Gmbh Articulation sleeve for a clamp
EP1568930A1 (de) 2004-02-28 2005-08-31 Rasmussen GmbH Schelle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040208688A1 (en) * 2003-04-02 2004-10-21 Rasmussen Gmbh Articulation sleeve for a clamp
EP1568930A1 (de) 2004-02-28 2005-08-31 Rasmussen GmbH Schelle

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Bohren, wo es am duennsten ist", WERKSTATT UND BETRIEB, CARL HANSER VERLAG GMBH & CO. KG, DE, vol. 141, no. 10, 1 October 2008 (2008-10-01), pages 104 - 105, XP001517648, ISSN: 0043-2792 *
"LOSBARE VERBINDUNGEN AN DUNNWANDIGEN WERKSTUCKEN", MECHANISCHE VERBINDUNGSTECHNIK, VDI VERLAG. DUSSELDORF, DE, vol. 14, no. 3, 1 January 1990 (1990-01-01), pages 20, XP000107528, ISSN: 0720-9886 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019532229A (ja) * 2016-08-22 2019-11-07 ノルマ ジャーマニー ゲーエムベーハー 鉤爪式固定手段
US11143340B2 (en) 2016-08-22 2021-10-12 Norma Germany Gmbh Clawed securing means
US11788363B2 (en) 2020-04-02 2023-10-17 Noetic Technologies Inc. Tool joint clamp

Also Published As

Publication number Publication date
NL2010431C2 (nl) 2014-09-15

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